Intelligent LED illumination system based on non-visual photo-biological effect and the control method thereof

Abstract

The invention discloses an intelligent LED illumination system based on non-visual photo-biological effect and the control method thereof. The LED illumination system comprises a light modulation system server, a WIFI unit, a system control unit, a multi-channel sensor module, a desk control station, a light modulation drive circuit unit and an LED light. The system control unit is connected with the light modulation system server through the WIFI unit; the multi-channel sensor module and the desk control station are connected with the system control unit. The LED light is connected with the system control unit through the light modulation drive circuit unit. The system and method of the invention fully consider the multiple influencing factors of the photo-biological effect to establish a complete light modulation data system through the modeling, calculating and analyzing of the photo-biological effect evaluation model and the multiple influencing factors at a cloud terminal server. The designed light modulation system server, through the long-term tracking, analyzing and deep learning of the light modulation data of a user, creates an intelligent illumination system that caters for their respective requirement.

Description

technical field [0001] The invention relates to an LED intelligent dimming system, in particular to an intelligent LED lighting system based on non-visual photobiological effects and a control method thereof. Background technique [0002] With the development of lighting technology, healthy and energy-saving intelligent lighting has become a major trend. In recent years, research on non-visual biological effects has shown that light can not only produce visual effects, but also cause some non-visual effects. Many physiological parameters of people are present. Circadian rhythm changes, lighting can affect people's fatigue, work and study efficiency, etc. When designing a lighting system, people should not only consider its visual effects, but also its impact on human health. Different groups of people need different lighting environments. At the same time, people also need different lighting in different living environments and in different time periods. The lights we use n...

AI Technical Summary

Problems solved by technology

However, PWM dimming is still immature at this stage, and the application occasions are relatively limited, and the market has yet to be developed. The primary reason is that the two will affect each other in the process of adjusting color temperature and illuminance by using ordinary PWM dimming, and the two cannot be effectively separated. regulatory control of

The frequent on-off of the current during the single-channel illumination adjustment process and the multi-level jumps of the current amplitude caused by the multi-channel color temperature adjustment process will easily lead to damage to the power drive unit. When used on a large scale, the main current of the power supply will generate high-order harmonic pollution, which is harmful to the The grid is extremely harmful

At the same time, during the PWM dimming process, the continuous switching of the diode is likely to cause high-frequency noise, and the continuous on and off of the LED light will cause the stroboscopic phenomenon of the light source. a lot of damage

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